Just putting it out there, for those who haven't noticed before.
The O blood type needs animal proteins, so does the AB. It takes time for the results of not having them to show up, years. What is the end result though?
Look at any "O" blood type that has been vegan for more than 8 years. Their hair and nails are less than stellar, "ok" is a more apt description. Their attitude is usually quite crabby and they begin looking like heroin junkies.
Seriously, have you ever compared what vegans of different blood types look like? When you do, you'll see some interesting similarities.